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Sloan [31]
3 years ago
10

"absmiddle" class="latex-formula">
please explain
Mathematics
1 answer:
umka2103 [35]3 years ago
8 0

y = 5x-2

y = mx+b

the y intercept is -2

the slope is 5

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What is the surface area of a triangular pyramid if each face has an area of 80 m2?
TiliK225 [7]
There are 4 sides in a triangular pyramid. So just multiply 80m2 by 4
80×4=24
7 0
3 years ago
Which of the following equations has a slope of -2 and passes through the point (2,3)?
ryzh [129]

Option C (Same as Option D)

<h2>Explanation:</h2>

Option C and D are the same, so I'll assume you made a mistake when writing this question. However, let's figure out which of the following equations has a slope of -2 and passes through the point (2,3):

A. y = -2x + 6

B. y - 3 = -2(x + 2)

C. y = -2x + 7

<em />

<em>All these equations have a slope of -2.</em>

FROM OPTION A:

Recall \ our \ point \ is \ (2,3), \ so: \\ \\ x=2 \\ \\ y=3 \\ \\ Substituting \ into \ the \ equation: \\ \\ 3=-2(2)+6 \\ \\ 3=-4+6 \\ \\ 3=2 \ False!

Since 3\neq 2 then the line doesn't pass through the point (2, 3)

FROM OPTION B:

Recall \ our \ point \ is \ (2,3), \ so: \\ \\ x=2 \\ \\ y=3 \\ \\ Substituting \ into \ the \ equation: \\ \\ 3-3=-2((2)+2) \\ \\ 0=-2(4) \\ \\ 0=-8 \ False!

Since 0\neq -8 then the line doesn't pass through the point (2, 3)

FROM OPTION C:

Recall \ our \ point \ is \ (2,3), \ so: \\ \\ x=2 \\ \\ y=3 \\ \\ Substituting \ into \ the \ equation: \\ \\ 3=-2(2)+7 \\ \\ 3=-4+7 \\ \\ 3=3 \ True!

Since 3\neq 3 then the line passes through the point (2, 3)

<em>Finally, the equation that has a slope of -2 and passes through the point (2,3) is Option C (Same as Option D)</em>

<em></em>

<h2>Learn more:</h2>

x and y intercepts of a line: brainly.com/question/13770925#

#LearnWithBrainly

5 0
3 years ago
Determine if the situation is additive or multiplicative AND determine the equation that corresponds to the situation.
diamong [38]

Answer:

The situation is Multiplicative.

The equation will be y=2x

Step-by-step explanation:

We are given the table:

Input (x)          5       8      11

Output (y)      10     16     22

Looking at the table, we see that the value of x is doubled to get value of y

Looking at the trend: 5(2) = 10

8(2) = 16

11(2) = 22

The value of x is multiplies by 2 to get value of y.

So, The situation is Multiplicative.

Now, The equation will be y=2x

because we saw the trend, that every value of x is multiplied by 2 to get value of y.

3 0
3 years ago
Read 2 more answers
A publishing company cost for publishing a certain book was 4.85.the selling price of the book is 11.97. Find the percent of pro
marta [7]

Answer:

Around 40.52%

Step-by-step explanation:

4.85 divided by 11.97 gives you the percent.

8 0
3 years ago
This is a function?<br><br> O True<br> O False
Oksanka [162]

Answer:

true

Step-by-step explanation:im not really sure

6 0
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